摘要
合成了(NH4)n[LaSb9W21O86M3]·xH2O(M=Mn,Co,Ni,Cu,Zn,Cr,Fe),通过元素分析、183WNMR核磁共振谱、可见光谱、电化学测定对其进行了表征。
Ammonium salts of seven new heteropolytungstates,[LaSb9W21O86M3]10-,7-(M=Mn,Co,Ni,Cu,Zn,Cr,Fe)were prepared from[LaSb9W21O86]16-and characterized by elemental analysis,visible spectroscopy and electrochemistry.Based on183W NMR spectroscopy of the lanthanum complex,the lanthanide cations occupy the central site in the structure previously demonstrated for the sodium derivative,and the possible binding sites for transition metal cations are discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第6期799-802,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
稀土化学与物理开放实验室资助
关键词
稀土金属
杂多络合物
钨
锑
Rare earth heteropolycomplex,Heteropolytungstoantimonate,Synthesis